863487672 has 16 divisors (see below), whose sum is σ = 2158719240. Its totient is φ = 287829216.

The previous prime is 863487659. The next prime is 863487721. The reversal of 863487672 is 276784368.

It is a super-2 number, since 2×863487672² = 1491221919391959168, which contains 22 as substring.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17989303 + ... + 17989350.

Almost surely, 2^863487672 is an apocalyptic number.

It is an amenable number.

863487672 is an abundant number, since it is smaller than the sum of its proper divisors (1295231568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

863487672 is a wasteful number, since it uses less digits than its factorization.

863487672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35978662 (or 35978658 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 51.

The square root of 863487672 is about 29385.1607448385. The cubic root of 863487672 is about 952.2523370124.

The spelling of 863487672 in words is "eight hundred sixty-three million, four hundred eighty-seven thousand, six hundred seventy-two".